Move around using the arrow keys. Try moving off-screen. Press H to toggle comments. The project moves block-by-block with comments enabled, so it's very slow.
This is taken from my Lunar Lander project and I mainly did this for @thesourceofepicness. It shows how the "Edge-Pointer" object works, and there's comments all over the script so press "see inside" to understand! Uploaded as a test for @dixiklo (and @thesourceofepicness). Are you interested in finishing this project? Let @dixiklo know, please! :)